#Let us make him drink wine ... nor when she arose

See how you translated many similar phrases in [[:en:bible:notes:gen:19:31|19:32-33]].

#drink wine

It can be made explicit that their goal was to get him drunk. AT: "drink wine until he gets drunk" (UDB) or "get drunk with wine" (See: [[:en:ta:vol1:translate:figs_explicit]])

#so that we may extend our father's line

This speaks about giving Lot descendants as if his family were a line that they are making longer. AT: "so that we can bear children who will be our father's descendants" (UDB) (See: [[:en:ta:vol1:translate:figs_metaphor]])

#He did not know when she lay down, nor when she arose

"he did not know anything about it" or "he did not know that she had slept with him"